Since the great success in the ImageNet competition in 2012, images have been the most popular applications of deep neural networks. However, deep learning for speech signal processing has already been developed since around 2009, and several consumer products related to speech/music recognition and synthesis build on deep learning. In this reading group, we review recent advances in deep learning for sounds very briefly, and introduce several papers related to sound representation learning and synthesis with the help of pre-trained deep neural networks for images.